What "arbitrary feat"? I was very specific about which basics I was talking about. Don't try to trivialize the point. If you want to go off into some sort of quibble about whether ki skills are "arbitrary" and not related to the transmission of Aikido, I'm not going to go there. ... ... and the simplist example of that proof would be exactly what I said: demonstrating basic ki/kokyu skills, just like Ueshiba did. ...that a "transmission" or "inheritance" is more than relationships in any martial art. If not, then anyone can draw lines and tell stories about their "lineage" and claim "transmission".
You could not have more thoroughly missed my point. "Arbitrary" as in "picking a feat" on the basis of being impressed by its appearance instead of a principled understanding of what it actually represents, which may be done by something not nearly so theatrical. Genealogy was not the point either.
It was a narrow point of the chinkon kishin and its relation to kokyu undo and the similarities or differences in its evolution/adaptation in various places. As to the rest, we've proved elsewhere we cannot usefully debate that, for three reasons lacking of common framework as to :
1) your premise of a loss as systemic as you maintain,
2) the conclusions you draw from that premise, nor
3) the prescription you maintain is necessary
This is a step to that common basis in fact for that discussion you wish to have. Without it or something like it, no one not already in agreement with you will usefully engage it.